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The Oregon Juniper Management tool presented here is a result of over a year of work that included an extensive data collection, standardization and analysis process, as well as development of the tool itself. The inputs into the tool and the prioritization modeling process include: compilation of existing spatial data specific to juniper management; review of existing juniper research pertaining to expansion; review of current mapped juniper data; review of costs associated with harvest and treatment and varying modeling approaches; implementation of a decision support model, coupled with the development of the online tool. At the time of this tool's launch, in 2013, all data present in the tool was the current and regarded as the best available. As new data becomes available however the Oregon Juniper Management Tool team will work, within budgetary confines, to ensure that the most up to date and relevant data is imported into the tool. Please contact afenix@ecotrust.org and share what insights you may have pertaining to the data we are currently using (or other data sets that we should be aware of) or to simply let us know what your experiences are with the tool. Together we can make it better. To learn more about the data showcased in the tool and the methodologies used see below.

Data and Methods

This tool allows land managers and other stakeholders to review a suite of juniper-related spatial data layers such as juniper canopy, sage grouse habitat, hydrology, and public ownership in an interactive web map viewer, and then build personalized scenarios for juniper removal. This is done by defining specific objectives, such as how many acres of juniper to remove or whether or not to prioritize removal in sage grouse habitat. The tool includes a wide array of spatially explicit data pertaining to juniper, management and wildlife species including data on sage grouse and pygmy rabbit habitat. Users can explore these raw data sets as well as the data summarized to level 5 Hydro 1-k watersheds (a geographic database produced by the USGS providing comprehensive and consistent global coverage of topographically derived basin boundaries). Please see the detailed metadata under the "Data" header to learn more about each data layer that was included in the tool, the source, publication date and other relevant information.

Prioritization process

We used a multi-objective decision support model based on computational heuristics to identify regional priorities at the 5th field, sub-basin scale. The heuristic draws on a simulated annealing algorithm to approximate an optimal configuration (or prioritization schematic) given a mathematically defined set of objectives (referred to as an objective function). This target based approach allows for the selection of a set of priority planning units based on avoiding those areas places that are environmentally vulnerable or potentially could be more costly (i.e. steep slopes), subject to the condition that targets for juniper treatment included in the analysis are met. Please see the detailed documentation of the prioritization process for additional information.


The data that inform the tool's inputs are described below. Hover your mouse over the data layer's name to see a description of the data, or click on the "View Metadata" link to see and download the full metadata for each data layer.

Base Layers
BLM Lands
Major USA Highways
Planning Units
Primary Rivers
Juniper cover greater than 50%
Juniper Phase 1
Juniper Phase 2
Juniper Phase 3
Wildlife Species
BLM Wild Horse and Burro Herd Areas
Pygmy Rabbit Habitat
Sage Grouse Preliminary General Habitat
Sage Grouse Preliminary Priority Habitat
BLM Biological Treatment Areas
BLM Burn Treatment Areas
BLM Chemical Treatment Areas
BLM Grazing Allotments
BLM Harvest Treatment Areas
BLM Mechanical Treatment Areas
BLM Protection Treatment Areas
BLM Revegetation Treatment Areas
BLM Visual Resource Inventory Publication Areas
BLM Visual Resource Management Publication Areas
BLM Wild Horse and Burro Herd Management Areas
Burn Probability
Historic Juniper Extent
Invasive Weeds
NREL Biomass Resource Potential
Protected Areas
Public Roads by Ownership
Utilization Centers
Wild and Scenic Rivers
Areas to Avoid/Costs
Areas of Critical Environmental Concern
BLM Wilderness Characteristics Areas
BLM Wilderness Lands
BLM Wilderness Study Areas
Slopes Greater Than 20%
Summarized Data by Planning Unit
Areas of critical environmental concern
BLM wilderness characteristics areas
BLM Wilderness Lands
BLM Wilderness Study Area
Juniper cover greater than 50%
Juniper Phase 1 Summary
Juniper Phase 2 Summary
Juniper Phase 3 Summary
Slope greater than 20%